<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
    <div class="media-body">
        <p>【系统】</p>
    <h4 class="media-heading"><strong>申请通知</strong>
        <p>{{ user.id }}({{ user.name }})申请学委</p>
        <a class="btn btn-sm btn-warning" style="float: right" href="http://127.0.0.1:5000">跳转</a>
    </h4>
    </div>